## Elementary Algebra

Published by Cengage Learning

# Chapter 11 - Additional Topics - 11.6 - Pie, Bar, and Line Graphs - Problem Set 11.6: 23

390 dollars

#### Work Step by Step

The waiter earned 120 dollars on Friday, 180 dollars on Saturday, and 90 dollars on Sunday. This means the total tips earned by the waiter over the course of these 3 days are $120+180+90=390$ dollars.

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